How does this happen, legally?
Its beyond me the county can build a road - maintain it years and then a landowner can pillage the road and access later.
I can think of two roads within 10 miles of the house I grew up in that were public my entire childhood that are now private.
One was considered a county Road, was on the county gas tax roll, and had a history of county maintenance. The other was a USFS road.
The fight for those roads is dependent on a lot of things I won’t claim to be an expert on: the appetite a county attorney has for fighting for the public, the money they have available, the case they think they have, etc. Montana’s counties are now filled with certain residents who have much larger budgets than their county attorneys office, and county attorney offices are spread thin as hell in a lot of instances.
In the case of that forest service road, when the controversy spun up I was told by the district ranger that they considered it public and were going to fight for it. When I followed up a year later, they felt that they didn’t have a case, and the fact that the parcel through which that road went was once enrolled in block management that required sign in to use the road hurt their case . When I really dug into that situation, I actually sympathized a bit with the landowners who shut it down. They were told certain things would happen that never did.
I think it’s complicated, and aside from a frighteningly small number of organizations like PLWA, it’s up to the vigilance of counties and their citizens. So many roads we use every day to access public lands don’t have recorded access at the local clerk and recorders office.